Nut-lock.



L049A89f.

f-gy/ H.T.HUGHE&

NUT LOCK.

APPLICATION FILED APR. 30, 1909.

Batented J an. "I, 1913.

liti

@FFME N 11T-3196K Specification of Letters Patent.

resented .im 7, 191e.

implication flied steril 30,1909. Eera No. 493,129.

To 'atl whom @it meg concern Be it known that l, HUGH T. HUGHES, a citizen ot the United States, residing in Frankfort, in fthe county of Herkimer and State of New York, have invented certain new and useful Improvements in Nut-Locks, of which the following is a speciication.

This ,invention relates to that class of', mechanical constructions that are called, in practice, nut-locks.

@ne ofthe objects of the invention is to so arrange mechanical elements in combination, as to produce eilicient results in locking a nut in a given-or desired position on a bolt, Without materially modifying the character of the nut; Without changing the character of the bolt, and `Without special constructiontof the usual parts adapted to be confined between the bolt head and the nut.

Another object is to provide for alitomatically releasing the nut from mechanical retention, at will.

The inventive conception hereinabove recited, may be embodied' in such suitable vmechanical forms, as will best suit practical requirements. ne ot such forms is noted on the sheet ot drawings, which accompanies this specification, and it is here proper to state that such lform, and any others by Which the invention may be carricd torth, are susceptible to such usual mechanical equivalents and changes as tall within the scope of mechanical skill. rlhis drawing sets t'orth in Figure 1, a crosssectional View, in' elevation, of the conventional 'T-rail, embraced by the ordinary style of fish-plates, and these are bolted together; the essence of the invention, serving to control or retain the nut upon the bolt-this illustration showing that nut under retention. The same elements are illustrated in Fig. 2, in that case hewever, the nut-retaining element is relieved from action upon its nut. Fig: 3, illustrates an ordinary nut adapted for use upon a bolt, and which is suitably constructed on one of its faces with a portion or portions adapted for coperating with the nut-retainer, oth for the retention and the release of the nut. Fig. t, illustrates in three views, one ot the torina ot a nut-retaining element. Fil. 5 portrays a means whereby the nirtflocingH device can be 'advantageously employed yin connection with hbrous materials.

Directing en explanation of the invention to the form illustrated, the numeral 9' is applied to a 'lV-rail, which is shown as being embraced by two sh-plates which are numbered 10 and 11, ,and through these elements is passed an ordinary bolt 12, having,r the usual head 13 and screw-threaded end 141 upon which an ordinary nut 15 may be suitably adjusted. This nut is suitably provided with portions or seats-one or more--16, which will coperate with the nut-retaining device heretofore mentioned, in a manner shortly to be explained. This nut-retaining device comprises a convolute or helical member, 17, or a memberso bent upon itself as to extend its free ends 18 and 19 in opposed lateral directions, for instance, as more clearly illustrated in the central figure in the group in Fig. .4. It will be observed that one of the free laterally extending extremities as 18, is provided with a latch having an abutment 20, and a cam-face 21, and the part 20 comes into positive engagement with a corresponding portion E22 created in one or more of the portions 16, hereinbetore mentioned in connection With the description of the nut 15, while the eam-face 21, will register with a corresponding wall 23 in' the portion 16, The opposite and oppositely extending free end 19 oit the retaining element 17 is formed.

with a beak 25, which will bite intoa member with which it will associate when the parts are so assembled that the nut is locked in desired position.

rthe restraining element 17, as may be observed from the drawing, surrounds the body of the bolt 12, with its latch end 18 bearing toward the nut 15, while its beak end 19, bears in the direct-ion of one of the fishplates, as 11. ln forcing the nut 15, home, distortion of the free ends 18 and 19, of the nut-retainer takes place, and therefore the tendency tor these ends to perform their respective duties becomes more positive.

By looking at Fig. 1, illustrating the parts in place and the nut in locked position, it will be observed that for the nut 15 to attempt to move in a direction opposite to that ot its application, Would mean to cause the beak 25 to dig deeper into the body of the tsh-plate 11. The high resilience now in the retainer, vvhich has been set up by distortion ot the free ends thereof, will cause the beak 25 to positively' abrade the plate.

' be Ia washer 33, which ma It is desirable that. the point of strain in the nuit-retaining device be of somewhat greater capacity and strength, than would ordinarily be required at other points.

Fig. 5 gives an illustration of the'nut locln'ngdevicebeing employed to unite portions of fibrous materials. In. such a case, obviously, it would be impractical to cause the beak 25 of the retainer 17, to simply bite into the brous body; therefore an intermediate metallic member must be introduced which, in'the present' case, may, as Shown, be provided with a plurality of cleats or ot er suitable retaining devices 34,"which Vare adapted to sink into the body with'which it is intended it shall associate, and it is into the face of this fietallic. element 33, that the beak 2 5 will ite.

Should it be desired to release the nut 15 from the control of the nut-retaining element 17, it will'be observed that the extremity 18v thereof which carries the latch,

is suicie'ntly taperedas at 35 to permit the latch-head to be forced away from engagement with the nut 15. This is accomplished by urging the nut in a direction reverse to.

ythat of its direction' of application, which will cause the portion 23 of the seat portion -16 on the nut 15, to bear against the camface 21 on the latch head: Continuousl cof operation of these faces 21 and 23, iinally results in disassociating the abutment 20 on Vthe latch head and the wall 22 on the nut,

when the nut is released from retention.

I fullyunderstand the applicability of` the invention for various purposes: also that'various mechanical forms to carry'out the inventive idea may be adopted within 'the purview ot' this invention, wherefore am not restricted'to one orlanother form in which the invention may be embodied.

Having thus described the invention, and

' one ofthe convenient forms in which the .tionary same maybe embodied, I claim Letters-Patent protection on the invention in the following manner:

1. The combination in a nut lock of a stan member, a `bolt projecting therethrough, a nut engaging said bolt, a. shoulder Ashoulder and a cam-face on one of'said extremity of said retainer lm ent of said retainer.

'tionary member, a bolt projecting there-Y .adapted respectively 4 ward movement with said nut and said cam .tremity of said spring-ring adapted to slide and-a cam face on said nut, va resilient nut retaining'eleinent interposed between said n'ut and said stationaryr element and having oppositely laterally'- disposed extremities, a

tremities adapted respectivel to engage said nut shoulder and said cam ace, said ehoulfyA ders adapted to positively lock said retainer to forward movement with said nut and said cam faces normally preventin reversal'of 6o said nut from said retainer, int allovi'f l such reversal upon further compressioiiro fj said retainer, and a beak. upon. the otheriislr:v adapted tovislidef f lover said statlonary-membe'r upon 'orwardas movement of said retainer and to-bite-mtot said stationary member upon reverse move-'1 7 2. The combination 1n anut lock of asta through, a nut engaging-said bolt,-va shoulder and cam face on said nut, a spring-rin 1 surrounding said bolt between said nut an said. stationary element and having oppo sitely laterally disposed extremities, ashoulder and a cam face on one of said extremities to engage said nut shoulder and cam face, said shoulders adapted topositively lock said spring-ring vto forfaces normally preventing reversal of said nut from said retainer, but' allowing such.: reversal upon urther'compression of saidspring-ring and abeak upon 'the Aother exover said stationary member upon forward 'movement of said spring-ring and to bite into said stationary member upoii reversed movement of, the said spring-ring. In testimony'whereof I have, this 22nd. day of Aprl,in the year of ourLord 19.09, set my hand and seal in the presenceof two witnesses, in the oices of Fred. W, Barnaclo,- my patent counsel at Utia, Oneida connty` New York.

HUGH T. [ne] Witnesses:

FRED. W. BARNACLO, M. B. BARBOR. l

su I 

